arch/parisc/boot/compressed/Makefile

   1 # SPDX-License-Identifier: GPL-2.0-only
   2 #
   3 # linux/arch/parisc/boot/compressed/Makefile
   4 #
   5 # create a compressed self-extracting vmlinux image from the original vmlinux
   6 #
   7
   8 OBJECTS := head.o real2.o firmware.o misc.o piggy.o
   9 targets := vmlinux.lds vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2
  10 targets += vmlinux.bin.xz vmlinux.bin.lzma vmlinux.bin.lzo vmlinux.bin.lz4
  11 targets += $(OBJECTS) sizes.h
  12
  13 KBUILD_CFLAGS := -D__KERNEL__ -O2 -DBOOTLOADER
  14 KBUILD_CFLAGS += -DDISABLE_BRANCH_PROFILING
  15 KBUILD_CFLAGS += -fno-strict-aliasing
  16 KBUILD_CFLAGS += $(cflags-y) -fno-delete-null-pointer-checks -fno-builtin-printf
  17 KBUILD_CFLAGS += -fno-PIE -mno-space-regs -mdisable-fpregs -Os
  18 ifndef CONFIG_64BIT
  19 KBUILD_CFLAGS += -mfast-indirect-calls
  20 endif
  21
  22 LDFLAGS_vmlinux := -X -e startup --as-needed -T
  23 $(obj)/vmlinux: $(obj)/vmlinux.lds $(addprefix $(obj)/, $(OBJECTS)) $(LIBGCC) FORCE
  24         $(call if_changed,ld)
  25
  26 sed-sizes := -e 's/^\([0-9a-fA-F]*\) . \(__bss_start\|_end\|parisc_kernel_start\)$$/\#define SZ\2 0x\1/p'
  27
  28 quiet_cmd_sizes = GEN $@
  29       cmd_sizes = $(NM) $< | sed -n $(sed-sizes) > $@
  30
  31 $(obj)/sizes.h: vmlinux FORCE
  32         $(call if_changed,sizes)
  33
  34 AFLAGS_head.o += -I$(objtree)/$(obj) -DBOOTLOADER
  35 $(obj)/head.o: $(obj)/sizes.h
  36
  37 CFLAGS_misc.o += -I$(objtree)/$(obj)
  38 $(obj)/misc.o: $(obj)/sizes.h
  39
  40 AFLAGS_real2.o += -DBOOTLOADER
  41
  42 CPPFLAGS_vmlinux.lds += -I$(objtree)/$(obj) -DBOOTLOADER
  43 $(obj)/vmlinux.lds: $(obj)/sizes.h
  44
  45 OBJCOPYFLAGS_vmlinux.bin := -R .comment -R .note -S
  46 $(obj)/vmlinux.bin: vmlinux FORCE
  47         $(call if_changed,objcopy)
  48
  49 suffix-$(CONFIG_KERNEL_GZIP)  := gz
  50 suffix-$(CONFIG_KERNEL_BZIP2) := bz2
  51 suffix-$(CONFIG_KERNEL_LZ4)  := lz4
  52 suffix-$(CONFIG_KERNEL_LZMA)  := lzma
  53 suffix-$(CONFIG_KERNEL_LZO)  := lzo
  54 suffix-$(CONFIG_KERNEL_XZ)  := xz
  55
  56 $(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE
  57         $(call if_changed,gzip)
  58 $(obj)/vmlinux.bin.bz2: $(obj)/vmlinux.bin FORCE
  59         $(call if_changed,bzip2_with_size)
  60 $(obj)/vmlinux.bin.lz4: $(obj)/vmlinux.bin FORCE
  61         $(call if_changed,lz4_with_size)
  62 $(obj)/vmlinux.bin.lzma: $(obj)/vmlinux.bin FORCE
  63         $(call if_changed,lzma_with_size)
  64 $(obj)/vmlinux.bin.lzo: $(obj)/vmlinux.bin FORCE
  65         $(call if_changed,lzo_with_size)
  66 $(obj)/vmlinux.bin.xz: $(obj)/vmlinux.bin FORCE
  67         $(call if_changed,xzkern_with_size)
  68
  69 LDFLAGS_piggy.o := -r --format binary --oformat $(LD_BFD) -T
  70 $(obj)/piggy.o: $(obj)/vmlinux.scr $(obj)/vmlinux.bin.$(suffix-y) FORCE
  71         $(call if_changed,ld)